A spokesperson for Manston Airport said: “We welcome the decision and we will now review the written judgment when it is published in the coming days before making any further comment.”

TG Aviation still had 50 years left on its lease at Manston before it was forced to leave.

The firm is run by Mark Girdler and his wife Sue and has trained hundreds of pilots, including several Red Arrows.

Mr Girdler said: “We felt we had no choice but to fight our corner but did not expect it to be such a drawn-out affair. The judge has not ruled on costs yet, but they will be considerable and any donations towards these will be gratefully accepted.

“We are down but a long way from out, and are committed to fighting on for our rights under our lease.

“We have special vouchers available to help support our operation and ensure that we can continue this fight to stop redevelopment of the airport. They start at £25 and have no upper limit.

“These can be used against flying during their six-month validity or be allowed to expire, donating the money to our cause.”